- 您现在的位置：买卖IC网 > PDF目录384464 > HY29F800ATG-90 (HYNIX SEMICONDUCTOR INC) 8 Megabit (1Mx8/512Kx16), 5 Volt-only, Flash Memory PDF资料下载
参数资料
| 型号： | HY29F800ATG-90 |
| 厂商： | HYNIX SEMICONDUCTOR INC |
| 元件分类： | DRAM |
| 英文描述： | 8 Megabit (1Mx8/512Kx16), 5 Volt-only, Flash Memory |
| 中文描述： | 512K X 16 FLASH 5V PROM, 90 ns, PDSO44 |
| 封装： | PLASTIC, SOP-44 |
| 文件页数： | 9/40页 |
| 文件大小： | 279K |
| 代理商： | HY29F800ATG-90 |
第1页第2页第3页第4页第5页第6页第7页第8页当前第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页
9
Rev. 1.1/Feb 02
HY29F800A
The flow chart in Figure 1 illustrates the proce-
dure for protecting sectors, and timing specifica-
tions and waveforms are shown in the specifica-
tions section of this document. Verification of pro-
tection is accomplished as described in the Elec-
tronic ID Mode section and shown in the flow chart.
The procedure for sector unprotection is illustrated
in the flow chart in Figure 2, and timing specifica-
tions and waveforms are given at the end of this
document.
Note that to unprotect any sector, all
unprotected sectors must first be protected prior
to the first unprotect write cycle.
Sectors can also be
temporarily
unprotected as
described in the next section.
Temporary Sector Unprotect Operation
This feature allows temporary unprotection of pre-
viously protected sectors to allow changing the
data in-system. Temporary Sector Unprotect mode
is activated by setting the RESET# pin to V
ID
. While
START
NOTE: All sectors must be
previously protected.
Set: TRYCNT = 1
Set: A9 = CE# = OE# = V
ID
Set: RESET# = V
IH
WE# = V
IL
Wait t
WPP2
Set:
A9 = V
OE# = CE# = V
IL
Read Data
Data = 0x00
NSEC = 18
YES
TRYCNT = 1000
NO
Increment TRYCNT
NO
YES
DEVICE FAILURE
NO
YES
Remove V
ID
from A9
SECTOR UNPROTECT
COMPLETE
APPLY V
CC
Set Sector Group Address:
A[18:12] = Sector NSEC
A0 = A6 = V
IL
A1 = V
IH
NSEC = NSEC + 1
Set: NSEC = 0
WE# = V
IH
Figure 2. Sector Unprotect Procedure
in this mode, formerly protected sectors can be
programmed or erased by invoking the appropri-
ate commands (see Device Commands section).
Once V
is removed from RESET#, all the previ-
ously protected sectors are protected again. Fig-
ure 3 illustrates the algorithm.
Electronic ID Mode Operation
The Electronic ID mode provides manufacturer and
device identification and sector protection verifi-
cation through identifier codes output on DQ[7:0]
or DQ[15:0]. This mode is intended primarily for
programming equipment to automatically match a
device to be programmed with its corresponding
programming algorithm. The Electronic ID infor-
mation can also be obtained by the host through a
command sequence, as described in the Device
Commands section.
Operation in the Electronic ID mode requires V
ID
on address pin A[9], with additional requirements
相关PDF资料 |
PDF描述 |
|---|---|
| HY29F800ATG-90I | 8 Megabit (1Mx8/512Kx16), 5 Volt-only, Flash Memory |
| HY29F800ATR-12 | 8 Megabit (1Mx8/512Kx16), 5 Volt-only, Flash Memory |
| HY29F800ATR-12I | 8 Megabit (1Mx8/512Kx16), 5 Volt-only, Flash Memory |
| HY29LV320TF-90 | 32 Mbit (2M x 16) Low Voltage Flash Memory |
| HY29LV320BF-12 | Dust Cover; For Use With:Anderson Power SB350 Series Connectors; Color:Red |
相关代理商/技术参数 |
参数描述 |
|---|---|
| HY29F800ATG-90I | 制造商:HYNIX 制造商全称:Hynix Semiconductor 功能描述:8 Megabit (1Mx8/512Kx16), 5 Volt-only, Flash Memory |
| HY29F800ATR-12 | 制造商:HYNIX 制造商全称:Hynix Semiconductor 功能描述:8 Megabit (1Mx8/512Kx16), 5 Volt-only, Flash Memory |
| HY29F800ATR-12I | 制造商:HYNIX 制造商全称:Hynix Semiconductor 功能描述:8 Megabit (1Mx8/512Kx16), 5 Volt-only, Flash Memory |
| HY29F800ATR-55 | 制造商:HYNIX 制造商全称:Hynix Semiconductor 功能描述:8 Megabit (1Mx8/512Kx16), 5 Volt-only, Flash Memory |
| HY29F800ATR-55I | 制造商:HYNIX 制造商全称:Hynix Semiconductor 功能描述:8 Megabit (1Mx8/512Kx16), 5 Volt-only, Flash Memory |
发布紧急采购，3分钟左右您将得到回复。